| 螺旋槽对诱导轮气蚀性能影响研究 |
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| 引用本文： | 李欣,胡声超,周佑君,肖立明,刘畅,王珏.螺旋槽对诱导轮气蚀性能影响研究[J].推进技术,2020,41(3):553-558. |
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| 作者姓名： | 李欣 胡声超 周佑君 肖立明 刘畅 王珏 |
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| 作者单位： | 北京宇航系统工程研究所,北京100076 |
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| 摘 要： | 为了提高诱导轮的气蚀性能,设计了一种带螺旋槽的壳体结构,通过试验获取了诱导轮安装螺旋槽后的水力性能和气蚀性能,采用快速傅里叶变换方法 (FFT)对入口脉动压力进行了分析,并与安装J型槽的诱导轮进行了对比。结果表明:同流量下,带螺旋槽诱导轮扬程升高,同时螺旋槽能改善诱导轮的气蚀性能,并且在设计流量Q_d和1.1Q_d工况下对同步旋转气蚀产生抑制作用,但在0.8Q_d工况下,螺旋槽对同步旋转气蚀的抑制作用弱于J型槽。
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| 关 键 词： | 诱导轮 螺旋槽 气蚀性能 同步旋转气蚀 |
| 收稿时间： | 2019/4/10 0:00:00 |
| 修稿时间： | 2019/6/18 0:00:00 |
Study on Cavitation Performance of a Inducer with Helical Grooves |
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| LI Xin,HU Sheng-chao,ZHOU You-jun,XIAO Li-ming,LIU Chang,WANG Jue.Study on Cavitation Performance of a Inducer with Helical Grooves[J].Journal of Propulsion Technology,2020,41(3):553-558. |
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| Authors: | LI Xin HU Sheng-chao ZHOU You-jun XIAO Li-ming LIU Chang WANG Jue |
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| Institution: | Beijing Institute of Astronautical Systems Engineering,Beijing100076,China |
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| Abstract: | In order to study the cavitation performance of a inducer with helical grooves, the hydraulic and cavitation performance in the inducer were obtained through experiments. In addition, the pressure fluctuation inside the inducer passage was investigated by Fast Fourier Transformation and compared with the data obtained in J type grooves. The results show that the helical grooves can increase the head of the inducer at the same flow rate and improve the cavitation performance. The synchronous rotating cavitation atQd and 1.1Qd are also suppressed by helical grooves. However, the J type grooves are better than helical grooves for suppressing the synchronous rotating cavitation at 0.8Qd. |
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